ADO.NET :: Linq To Xml To Retrieve Element Value By Its Attribute?
Sep 9, 2010how to select the mac element value. Here is my code that not working.
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how to select the mac element value. Here is my code that not working.
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<asp:GridView ID="GridView1" runat="server">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="TextBox1" onchange="calculate()" runat="server" Text="0"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I'm getting this error on the above markup: Message 1 Validation (ASP.Net): Attribute 'onchange' is not a valid attribute of element 'TextBox'.
I created a simple Master Page in Visual Studio 2008:
<%@
Master
Language="VB"
CodeFile="MasterPage.master.vb"
Inherits="MasterPage" %>
<!DOCTYPE
html
PUBLIC
"-//W3C//DTD XHTML 1.0 Transitional//EN"
and got green underlined 'Master' with two warning messages: 1.Validation (ASP.NET): This attribute name must be followed byan equal (=) sign and a value. If the value is in quotation marks, the quotation marks must match. 2. Validation (ASP.NET): Attribute 'Master' is not a valid attribute of element 'Control'.How I can get rid of the messages?
Is there a way to retrieve values from the form object using the id element instead of the name element?
View 3 RepliesI have a tag:
<asp:ListItem
CssClass="LabelCSS">Executive</asp:ListItem>
and I am getting the error message
Validation(ASP .Net):Attribute CssClass is not a valid attribute of element ListItem.
What attribute would I use for Css with ListItem?
I am developing asp.net mobile application. I am using LINQ to XML to query XML file. I am using the following query to retrieve the name & value of the query dynamically as follows
var TotalManifolds = from MF in FieldRoot.Element("FIELD-DEFINITION").Element("MANIFOLDS").Elements("MANIFOLD")
join SLT in FieldRoot.Element("FIELD-DEFINITION").Element("SLOTS").Elements("SLOT")
on (string)MF.Attribute("MID") equals (string)SLT.Attribute("PARENT")
select new
{
SlotName = (string)SLT.Attribute("NAME").Value,
SlotValue = (string)SLT.Attribute("NAME").Value
};
In the following statement of above query I want to retrive the name of the attribure dynamically without explicitly specifying the name of the attribute SlotName = (string)SLT.Attribute("NAME").Value Here I am explicitly specifying the name. I want to code which can dynamically retrieve the name of the attribute. I am new to Linq to xml. how this can be done programatically? or can you provide me the link through which I can resolve the above issue ?
I would like to have this piece of code in my .aspx file:
<input class="ms-ButtonHeightWidth" type="button" name="BtnOK" id="Button2"
value="Close"
onclick="javascript:HandleOKButtonClick()"
accesskey="<%$Resources:wss,okbutton_accesskey%>" />
Unfortunately, ASP.net doesn't seem to like that:
An error occurred during the processing of /_layouts/MyPage/Info.aspx. Literal expressions like '<%$Resources:wss,okbutton_accesskey%>' are not allowed. Use <asp:Literal runat="server" Text="<%$Resources:wss,okbutton_accesskey%>" /> instead
That doesn't work in this situation as that would mean nesting the Literal between the quotes of the accesskey attribute, which causes a "The tag contains duplicate 'ID' attributes" error.
Is there a way to use a string from a resource without having to change the input to an asp:Button? I guess there has to be a way using <%=, but I don't know how I would address the resource itself?
can anyone make it clear the main purpose of action attribute of form tag in html page?
View 2 RepliesI have a VS 2003 Web app that I'm creating. I'm using a Panel control and I'm trying to apply a CSS class to this panel. However, when I try coding the following statement
<asp:Panel class="pnl2" runat="server">
it doesn't like the "class" attribute saying "could not find any attribute 'class' of element panel"? I'm used to using VS 2005 and higher and haven't seen this before. What am I doing wrong?
I'm new to ASP.NET and MVC in particular. Now, I'm trying to understand if I can easily get values of custom attributes of submitted data. For example, When writing something like this inside a form (which works and posts and I can get the checkbox value) <%= Html.CheckBox("cb1", new { listen = "listen:6" }) %> Can I get the value of "listen" directly or do I need JS? (I know I can just use hidden fields, but I'm I'm asking anyway)
View 1 RepliesI have a large string containing a custom HTML tag (xxx). The tag also has two attributes. How would I retrieve the value of the two attributes and then place the tag and its content with a new string derived from those two attributes?
View 2 RepliesWhat is the best way to obtain an attribute such as the DisplayNameAttribute of a model's property using the property's name. I am using the following method currently:
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Looking at this long statement, I cannot help wondering if there is a better way to do it.
I am using ASP.NET in VB.
I have an XML document which contains all the details of staff in my company...
<staff>
<staffName>Test Staff</staffName>
<staffTitle>Slave</staffTitle>
<staffDepartmentName>Finance</staffDepartmentName>
<staffOffice>London</staffOffice>
<staffEmail>t.staff@company.co.uk</staffEmail>
<staffPhone>0207 123 456</staffPhone>
<staffNotes>Working hours Mon to Thurs 9.15 - 5.15</staffNotes>
<staffBio></staffBio>
</staff>
As you can see, some nodes do not always contain data for ever member of staff; only Directors have biographies.
I access the values like this...
For Each staff In ( _
From matches In myXMLFile.Descendants("staff").Descendants("staffName") _
Where matches.Nodes(0).ToString.ToLower.Contains(LCase(search)) _
Order By matches.Value _
Select matches)......
Once it gets to staffBio I get an error saying "Object reference not set to an instance of an object." obviously because that node does not exist.
My question is how can I assign the value to a variable even when it is empty without having to do a conditional check before each assignment?
i use GUI tool of vs2008 to generate some LINQ to SQL class, my problem is StringTemplate can not reach attributes of those model
$persons:{
<li>$it.name$</li>
}$
it printed:
<li></li>
<li></li>
<li></li>
name is public property of Person model. If i create a person class by myself, and the same attributes, StringTemplate can get it.
I'm using LINQ together with XDocument to read a XML File. This is the code:XDocument xml = XDocument.Load(filename);
var q = from b in xml.Descendants("product")
select new
{
[code]...
I wish to retrieve data from a DataTable using Linq, and I do this by first creating a DataTable with the data and then using Linq to query:
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My problem is, that the column "enddatee" has 'holes', meaning that some rows does not have a value. This means that the convertion to DateTime will fail for some rows. How can I get around that?
I want to get the customers info and companies of this companies of products they deal with here is my query in linq
var query = from sd in db.Survey_Details
select new
{[code]...
customer table has about 3000 customer who every one of them fill a survey of 2500 product till now survey_details table has about 90,000 recored an will increase by 100% every year this query run good without binding in RowDataBound when i want to work with RowDataBound this is too slow and data never come i think i may take about 5 hours to come
i have a link query that retrun all the records that have their status = 'completed' ordered by their ids, but i want to return only three records not all the records
View 2 RepliesHow can I retrieve the row ID immediately as I insert a new record with LINQ? I need to refer back to it to update the row since it will be the only unique data in this particular table ( it's the primary key and the ID number is auto generated)
View 3 RepliesMultiple applications are sharing the same session cookie at the moment and I don't want this to be the case, however, I would like to set the value in code rathr than hardcode a value using the web.config.
View 1 RepliesI'm using the file upload to let the user upload a single file. Here's the code I'm using to then upload to the DB. How do I reverse this process and dowload the image into the control for it to display on a different page? Here's my code for the upload - which I think works but can't confirm until I can see the download since all I see in the DB is "binary data"
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DataClasses1DataContext dc = new DataClasses1DataContext();
var q =
from a in dc.GetTable<Order>()
where a.CustomerID.StartsWith("A")
select a;
}
i have run this query but through using dataGridView1.DataSource = q;
i have get the out put
but i want to select each record through loop because i want to store it in variable
I need to know how to extract the result of the attempted LINQ query below and set it equal to the strFile variable.Everything Intellisensed OK here but ine 5 shows a syntax error at the parenthesis.
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I have a Timestamp column in my Table. I want to read the date time value and display in UI.
In Linq the Timestamp column is represented as System.Data.Linq.Binary.
I dont know how to retirve date time value in "MM-dd-YYYY" format from this Linq.Binary
- Why I am using Timestamp?.
I want to perform some operations based on the last modified date time of the particular row. Since I am using TimeStamp column in my Table as version column, It will contain the last modified date details, So i want to read the date time value from this time stamp column to do some other operations.
is there any way I can retrieve the identity value (auto generated primary key value), of a column after inserting a new database record using linq to sql? i could i achieve this like this using stored procedure: //***insert some recor*** return @@identity. how do I achieve thesame with linq to sql
View 2 Replies